Kes is one of my equally top three favourite party members (favourite black-haired character, other favourite party members Monica, Sarah) but considering story may last almost two more years (or more?) I don't see much reason Kes should join harem so fast instead of maybe halfway through remaining story, unless party will continue growing, but even for that reason, it'd be nice if it grows... nice to have major things to look forward to, and more interesting if sizeable part of party isn't in harem until closer to end. Didn't Vander mention story may eventually involve farther-away countries (Honshu, etc.?) I'd guess over various/many parts the world since curse is presumably worldwide? So, maybe more foreign characters will join or be employed by party, even temporary basis...?
On previous topic (I praised game for many hairy vaginas, then people got further into hair topic) seems odd no Honey Select humanoid 3D models have armpit hair, but there's almost no reason to show an armpit unless a character's side is injured and you're treating them... unlikely (MC not being cleric). I don't see why people dislike--and it's likely also normal in Mediaeval-type setting--but I don't consider it major concern nor interesting either way.
On topic of party again, it'd be nice to see images at points in time of 'extended party' with those who risk their lives working for them ('hirelings', 'retainers', 'students', etc.) on adventures like Aoife, Naesala (don't recall others do, but Karla may not really count, despite helping with equipment, because she stays in Wildale, though maybe wouldn't be out-of-place) as well as party's pets that can fight.
Someone mentioned they lust for imprisoned elf queen. All elven ladies (so far) are beautiful, but I don't want the criminal. Current elf queen is stunning, but probably would marry another elf... of course as queen she could proposition fun with MC or anyone she wants. I'm definitely not against it but think one royal elf in the harem is sufficient, and a queen of a foreign land probably wouldn't/couldn't join a harem for political reasons: MC could only end up as her concubine at best.
Other characters I like and think would be nice harem additions (or one-time sex scenes) are Marduk Cleric Selana, Witch Grizella of Glenval, Intendant Julia. Of course, Selana may already have a man and/or other responsibilities, and Grizella probably would stay there for work (and countryside/naturalist living) not move to Wildale, and I'd guess for Julia's higher financial position, she's an employed freewoman (not slave) likely with a man, but MC doesn't talk to these three much, so less chance.
All the Wildale maids and named (women) guards should get their chance with the MC.